Moore did not race in the series again until 2021 when he returned to BMR to run full-time in their No. 99 car. He collected 6 top tens and 4 top fives and led 114 laps, including 79 at Roseville. His best finishes were 4th at both Sonoma Raceway and Colorado National Speedway.[4] That year, Moore made his ARCA Menards Series debut, running in the combination race with the West Series at Phoenix Raceway, finishing 12th. At the end of the year, Moore won the 2021 ARCA Menards Series WestRookie of the Year award.
In 2022, Moore ran another full season for BMR in the West Series in their No. 99 car. He won his first race in the series at All-American Speedway in October. Also, in that same race, he competed against his father, John Moore, for the first time in the West Series, who drove an additional car for BMR, the No. 27.[5] Moore would finish the season third in the final standings.
On February 2, 2023, it was announced that Moore would only be running part-time for BMR in the West Series in 2023 and he would share their No. 19 car with Eric Johnson Jr., although he would end up not running any races for the team that year.[6]